Method of remodeling lasts



arc EU, 136. Q HARRIMAN ET AL -2,033,895

METHOD OF REMODELING LASTS Filed Sept. 18, 1955 2 Sheet sSheet l Marchmy c. E. HARRIMAN El AL v 2,33,89

METHOD OF REMODELING LASTS Filed Sept. 18, 1955 2 Sheets-Sheet 2 WOW;

Patented Mar. 10, 1936 UNITED STATES PATET OFFICE v 7 2,033,895 METHODOF REMODELING LASTS Application September 18, 1935, Serial No. 41,068

3 Claims.

Our present invention is a novel and improved method of lastconstruction, and an improved last made thereby. I

It is an important object of our present invention to enable theremodeling of lasts, particularly of the forepart, to be effectively,economically, and efiiciently carried out, and while the invention isprimarily directed to such remodeling or remaking, it is also within thescope of the invention to utilize our method for the manufacture of 7original last structures, particularly hinge lasts.

In the remodeling of lasts, particularly hinge lasts, it has heretoforebeen customary to cut off apart of the forepart, apply blocks, wedges,or additional sections, and then turn the forepart to give a differentstyle from that of the original last. Usually the heel portion of lastsof similar sizes are substantially uniform, but the constant changes instyles and designs necessitate correponding changes in the forepart and,therefore, the remodeling of the forepart has become an establishedpractice.

However, great difficulty has been experienced 5 in the remodeling ofsuch lasts because of the many difficulties encountered, such forexample as"-getting the same properly aligned with the forepart,centering the remodeled forepart and heel part in a lathe, and, inaddition, the dimculties of making any substantial changes in theoriginal model.

Our present invention has for its object to obviate the difficultiesabove briefly outlined and to provide a method of remodeling which willgive a complete and entirely new forepart structure formed on as widelya different contour and design as that of any original last design.

In carrying out our invention we cut off the heel portion adjacent thehinge and thereupon attach securely to the heel an entirely new forepartblock; thereupon turning the new block into the desired last design;thereafter forming any line of out between the thus newly turned fore-45 part and the heel portion, and thereupon fit such hinge or connectinglink, or links, as may be desired.

Further advantages, important features, and novel constructions will behereinafter more fully 50 pointed out and claimed.

Referring to the drawings illustrating a preferred embodiment of ourmethod and the improved last construction made thereby,

Fig. 1 is a side view of a conventional style of 55 last which it isdesired to remodel;

Fig. 2 illustrates diagrammatically the cutting of the heel part;

Fig. 3 is a plan view showing the method of attachment of the newforepart block with the heelpart;

Fig. 4 is a side view of the new forepart and heel portion;

Fig. 5 illustrates the same after it has been turned and with the newline of division between the forepart and heel part out, and 10 Fig. 6illustrates the remodeled last reassembled.

As shown in the drawings, we have illustrated a typical hinge lasthaving a heel portion l, forepart 2, any desired connecting link orhinge 15 3 secured by pins 4 and 5, as shown. The first step in ourprocess is to drive out the pins 4 and 5 and separate the last parts,the forepart being entirely discarded. Thereupon, we form a straightplane cut substantially vertical on 20 the heel part, dividing a smallsection from the heel part I, as shown at Ill, Fig. 2, giving the plane,flat surface l2 of substantial area, leaving the heel part with itsthimble l5, reinforcing bolts l6 and I1, and heel plate l8 intact.There- 25 upon, we fit a new block 20 of suitable length and proportionsfrom which the new forepart is to be out, severing the end of this blockin a straight plane surface 22 to fit and contact with the surface l2which has been formed on the 30 heel part. Any suitable means may beused to unite the forepart block 20 and heel l.

Ordinarily, glue may be sufficient during the turning and subsequentcutting and fitting, but we prefer to utilize two or more dowels 25-45 5fitted in appropriate recesses 26-26 in the fore block 2!], and 2'l--2'lin the heel part I; thereupon driving the two parts I and 20 togetherand uniting the same by glue in addition thereto, so that the preparedlast as thus far made is 40 shown in Fig. 4 and is ready for fitting inthe turning lathe before turned at the new forepart 30.

Thereupon the last as thus far constructed is subjected to the turningoperation and is, thereafter, cut on the usual lines of division 3|, 32,and 33. If desired, the hinge recess in the heel portion may be peggedor closed and a new recess bored to receive the new hinge pin 35 tocooperate with the new hinge pivot 36 in the forepart for securing thehinge Ml. The original hinge 3 may be used for this purpose, if desired,and the last parts assembled and completed as shown in Fig. 6.

Our method thus enables us to make an entirely new and different styleof last, with the forepart 39 radically different from that of theoriginal forepart 2, and often of different sizes. This is accomplishedWithout disturbing the thimble and other fittings on the heel part Iand, furthermore, enables the completed last structure tobe quickly,.easily, and readily assembled, centered, turned, and lines of cut sawedtherethrough, and the hinge applied all in accordance with standard andexisting methods without any extra difliculty, jigs, fittings, operations, or the like.

We claim:

1. The improved method of remodeling lasts, which consists indisassembling the forepart from the heel part, preparing a smooth fiatsurface of substantial area on the heel part, securing thereto a lastblock of sufficient area to produce an entire forepart, thereuponturning the said block into the contour of the forepart desired,thereafter severing the forepart and heel by a line of cut independentlyof the contacting surface of the original heel and block, and applying ahing'e.

2. The improved method of remodeling lasts,

which consists in disassembling the forepart from the heel part,preparing a smooth flat surface of substantial area on the heel part,securing thereto a last block by means of dowels, said block beingadapted to produce an entirely new forepart, thereupon turning the saidblock into the contour of the forepart desired, thereafter severing theforepart and heel by a line of cut independently of the contactingsurface of the original heel and block, and applying a hinge.

3. The improved method of remodeling lasts, which consists indisassembling the forepart from the heel part, preparing a smooth flatsurface of substantial area on the heel part by a line of cut forward ofthe thimble, heel plate, and

fittings in said heel part, applying and securing thereto a last blockof suflicient area to produce an entirely new forepart, thereuponturning the said block into the contour of the forepart desired,thereafter severing the forepart and heel by a line of cut independentlyof the contacting surface of the original heel and block, and applying ahinge.

CHARLES E. I-IARRIMAN.

EDWARD C. ROBINSON.

